/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-36.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 11:23:09,558 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 11:23:09,626 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 11:23:09,630 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 11:23:09,630 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 11:23:09,651 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 11:23:09,651 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 11:23:09,651 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 11:23:09,652 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 11:23:09,655 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 11:23:09,655 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 11:23:09,655 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 11:23:09,655 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 11:23:09,656 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 11:23:09,656 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 11:23:09,657 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 11:23:09,657 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 11:23:09,657 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 11:23:09,657 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 11:23:09,657 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 11:23:09,658 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 11:23:09,658 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 11:23:09,658 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 11:23:09,658 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 11:23:09,658 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 11:23:09,658 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 11:23:09,659 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 11:23:09,659 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 11:23:09,659 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 11:23:09,659 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 11:23:09,660 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 11:23:09,660 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 11:23:09,660 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 11:23:09,660 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 11:23:09,660 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 11:23:09,660 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 11:23:09,660 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 11:23:09,661 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 11:23:09,661 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 11:23:09,661 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 11:23:09,661 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 11:23:09,661 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 11:23:09,661 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 11:23:09,661 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 11:23:09,662 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 11:23:09,662 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 11:23:09,662 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 11:23:09,840 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 11:23:09,853 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 11:23:09,855 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 11:23:09,856 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 11:23:09,856 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 11:23:09,857 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-36.i [2023-12-16 11:23:10,967 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 11:23:11,176 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 11:23:11,177 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-36.i [2023-12-16 11:23:11,198 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6aa43d1e/019c420e0a3e4d0ca190e516369d16a8/FLAG7fadede80 [2023-12-16 11:23:11,208 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6aa43d1e/019c420e0a3e4d0ca190e516369d16a8 [2023-12-16 11:23:11,210 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 11:23:11,211 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 11:23:11,212 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 11:23:11,212 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 11:23:11,226 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 11:23:11,227 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 11:23:11" (1/1) ... [2023-12-16 11:23:11,227 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a831b50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:23:11, skipping insertion in model container [2023-12-16 11:23:11,227 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 11:23:11" (1/1) ... [2023-12-16 11:23:11,323 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 11:23:11,444 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-36.i[916,929] [2023-12-16 11:23:11,570 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 11:23:11,593 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 11:23:11,604 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-36.i[916,929] [2023-12-16 11:23:11,674 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 11:23:11,690 INFO L206 MainTranslator]: Completed translation [2023-12-16 11:23:11,690 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:23:11 WrapperNode [2023-12-16 11:23:11,690 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 11:23:11,691 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 11:23:11,691 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 11:23:11,691 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 11:23:11,696 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:23:11" (1/1) ... [2023-12-16 11:23:11,712 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:23:11" (1/1) ... [2023-12-16 11:23:11,745 INFO L138 Inliner]: procedures = 27, calls = 106, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 640 [2023-12-16 11:23:11,746 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 11:23:11,746 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 11:23:11,746 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 11:23:11,746 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 11:23:11,758 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:23:11" (1/1) ... [2023-12-16 11:23:11,759 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:23:11" (1/1) ... [2023-12-16 11:23:11,781 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:23:11" (1/1) ... [2023-12-16 11:23:11,803 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 11:23:11,803 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:23:11" (1/1) ... [2023-12-16 11:23:11,804 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:23:11" (1/1) ... [2023-12-16 11:23:11,837 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:23:11" (1/1) ... [2023-12-16 11:23:11,842 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:23:11" (1/1) ... [2023-12-16 11:23:11,858 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:23:11" (1/1) ... [2023-12-16 11:23:11,862 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:23:11" (1/1) ... [2023-12-16 11:23:11,876 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 11:23:11,877 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 11:23:11,877 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 11:23:11,877 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 11:23:11,878 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:23:11" (1/1) ... [2023-12-16 11:23:11,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 11:23:11,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 11:23:11,900 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 11:23:11,957 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 11:23:11,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 11:23:11,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 11:23:11,970 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 11:23:11,971 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 11:23:11,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 11:23:11,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 11:23:12,099 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 11:23:12,103 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 11:23:47,941 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 11:23:48,025 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 11:23:48,025 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 11:23:48,025 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 11:23:48 BoogieIcfgContainer [2023-12-16 11:23:48,026 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 11:23:48,028 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 11:23:48,028 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 11:23:48,030 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 11:23:48,031 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 11:23:11" (1/3) ... [2023-12-16 11:23:48,031 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35a8b103 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 11:23:48, skipping insertion in model container [2023-12-16 11:23:48,031 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:23:11" (2/3) ... [2023-12-16 11:23:48,032 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35a8b103 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 11:23:48, skipping insertion in model container [2023-12-16 11:23:48,032 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 11:23:48" (3/3) ... [2023-12-16 11:23:48,033 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-36.i [2023-12-16 11:23:48,046 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 11:23:48,047 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 11:23:48,103 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 11:23:48,110 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4773b4c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 11:23:48,110 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 11:23:48,118 INFO L276 IsEmpty]: Start isEmpty. Operand has 274 states, 178 states have (on average 1.6292134831460674) internal successors, (290), 179 states have internal predecessors, (290), 93 states have call successors, (93), 1 states have call predecessors, (93), 1 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2023-12-16 11:23:48,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 597 [2023-12-16 11:23:48,158 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:23:48,159 INFO L195 NwaCegarLoop]: trace histogram [93, 93, 93, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 11:23:48,160 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:23:48,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:23:48,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1165981824, now seen corresponding path program 1 times [2023-12-16 11:23:48,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:23:48,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [282407915] [2023-12-16 11:23:48,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:23:48,184 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 11:23:48,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:23:48,186 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 11:23:48,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 11:23:50,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:23:50,866 INFO L262 TraceCheckSpWp]: Trace formula consists of 975 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 11:23:50,883 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:23:50,942 INFO L134 CoverageAnalysis]: Checked inductivity of 17112 backedges. 8648 proven. 0 refuted. 0 times theorem prover too weak. 8464 trivial. 0 not checked. [2023-12-16 11:23:50,942 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 11:23:50,943 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:23:50,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [282407915] [2023-12-16 11:23:50,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [282407915] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 11:23:50,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 11:23:50,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 11:23:50,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529536716] [2023-12-16 11:23:50,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 11:23:50,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 11:23:50,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:23:50,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 11:23:50,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 11:23:50,986 INFO L87 Difference]: Start difference. First operand has 274 states, 178 states have (on average 1.6292134831460674) internal successors, (290), 179 states have internal predecessors, (290), 93 states have call successors, (93), 1 states have call predecessors, (93), 1 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) Second operand has 2 states, 2 states have (on average 69.0) internal successors, (138), 2 states have internal predecessors, (138), 2 states have call successors, (93), 2 states have call predecessors, (93), 2 states have return successors, (93), 2 states have call predecessors, (93), 2 states have call successors, (93) [2023-12-16 11:23:55,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.76s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 11:23:55,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:23:55,833 INFO L93 Difference]: Finished difference Result 545 states and 1043 transitions. [2023-12-16 11:23:56,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 11:23:56,114 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 69.0) internal successors, (138), 2 states have internal predecessors, (138), 2 states have call successors, (93), 2 states have call predecessors, (93), 2 states have return successors, (93), 2 states have call predecessors, (93), 2 states have call successors, (93) Word has length 596 [2023-12-16 11:23:56,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:23:56,122 INFO L225 Difference]: With dead ends: 545 [2023-12-16 11:23:56,122 INFO L226 Difference]: Without dead ends: 272 [2023-12-16 11:23:56,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 595 GetRequests, 595 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 11:23:56,134 INFO L413 NwaCegarLoop]: 468 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2023-12-16 11:23:56,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 468 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2023-12-16 11:23:56,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2023-12-16 11:23:56,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 272. [2023-12-16 11:23:56,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 177 states have (on average 1.6101694915254237) internal successors, (285), 177 states have internal predecessors, (285), 93 states have call successors, (93), 1 states have call predecessors, (93), 1 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2023-12-16 11:23:56,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 471 transitions. [2023-12-16 11:23:56,224 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 471 transitions. Word has length 596 [2023-12-16 11:23:56,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:23:56,225 INFO L495 AbstractCegarLoop]: Abstraction has 272 states and 471 transitions. [2023-12-16 11:23:56,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 69.0) internal successors, (138), 2 states have internal predecessors, (138), 2 states have call successors, (93), 2 states have call predecessors, (93), 2 states have return successors, (93), 2 states have call predecessors, (93), 2 states have call successors, (93) [2023-12-16 11:23:56,225 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 471 transitions. [2023-12-16 11:23:56,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 597 [2023-12-16 11:23:56,240 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:23:56,240 INFO L195 NwaCegarLoop]: trace histogram [93, 93, 93, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 11:23:56,311 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-16 11:23:56,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 11:23:56,461 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:23:56,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:23:56,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1351080686, now seen corresponding path program 1 times [2023-12-16 11:23:56,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:23:56,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1962757637] [2023-12-16 11:23:56,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:23:56,463 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 11:23:56,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:23:56,465 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 11:23:56,488 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 11:23:58,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:23:58,942 INFO L262 TraceCheckSpWp]: Trace formula consists of 975 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 11:23:58,955 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:24:04,165 INFO L134 CoverageAnalysis]: Checked inductivity of 17112 backedges. 6926 proven. 75 refuted. 0 times theorem prover too weak. 10111 trivial. 0 not checked. [2023-12-16 11:24:04,166 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 11:24:05,164 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:24:05,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1962757637] [2023-12-16 11:24:05,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1962757637] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 11:24:05,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1320317524] [2023-12-16 11:24:05,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:24:05,165 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 11:24:05,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 11:24:05,214 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 11:24:05,252 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-16 11:24:06,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:24:06,678 INFO L262 TraceCheckSpWp]: Trace formula consists of 975 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 11:24:06,686 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:24:07,674 INFO L134 CoverageAnalysis]: Checked inductivity of 17112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17112 trivial. 0 not checked. [2023-12-16 11:24:07,675 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 11:24:07,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1320317524] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 11:24:07,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 11:24:07,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-12-16 11:24:07,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986475028] [2023-12-16 11:24:07,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 11:24:07,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 11:24:07,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:24:07,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 11:24:07,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 11:24:07,682 INFO L87 Difference]: Start difference. First operand 272 states and 471 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (93), 1 states have call predecessors, (93), 1 states have return successors, (93), 1 states have call predecessors, (93), 1 states have call successors, (93) [2023-12-16 11:24:12,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.68s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 11:24:16,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 11:24:20,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 11:24:20,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:24:20,988 INFO L93 Difference]: Finished difference Result 689 states and 1190 transitions. [2023-12-16 11:24:20,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 11:24:20,991 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (93), 1 states have call predecessors, (93), 1 states have return successors, (93), 1 states have call predecessors, (93), 1 states have call successors, (93) Word has length 596 [2023-12-16 11:24:20,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:24:20,995 INFO L225 Difference]: With dead ends: 689 [2023-12-16 11:24:20,995 INFO L226 Difference]: Without dead ends: 418 [2023-12-16 11:24:20,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1268 GetRequests, 1263 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 11:24:20,998 INFO L413 NwaCegarLoop]: 579 mSDtfsCounter, 216 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 1036 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2023-12-16 11:24:20,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 1036 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 3 Unknown, 0 Unchecked, 13.3s Time] [2023-12-16 11:24:20,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2023-12-16 11:24:21,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 415. [2023-12-16 11:24:21,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 277 states have (on average 1.6101083032490975) internal successors, (446), 278 states have internal predecessors, (446), 135 states have call successors, (135), 2 states have call predecessors, (135), 2 states have return successors, (135), 134 states have call predecessors, (135), 135 states have call successors, (135) [2023-12-16 11:24:21,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 716 transitions. [2023-12-16 11:24:21,049 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 716 transitions. Word has length 596 [2023-12-16 11:24:21,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:24:21,052 INFO L495 AbstractCegarLoop]: Abstraction has 415 states and 716 transitions. [2023-12-16 11:24:21,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (93), 1 states have call predecessors, (93), 1 states have return successors, (93), 1 states have call predecessors, (93), 1 states have call successors, (93) [2023-12-16 11:24:21,053 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 716 transitions. [2023-12-16 11:24:21,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 597 [2023-12-16 11:24:21,081 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:24:21,081 INFO L195 NwaCegarLoop]: trace histogram [93, 93, 93, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 11:24:21,092 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-16 11:24:21,346 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 11:24:21,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 11:24:21,502 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:24:21,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:24:21,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1922818256, now seen corresponding path program 1 times [2023-12-16 11:24:21,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:24:21,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1324716790] [2023-12-16 11:24:21,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:24:21,504 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 11:24:21,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:24:21,507 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 11:24:21,508 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 11:24:23,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:24:23,922 INFO L262 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 11:24:23,937 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:24:28,594 INFO L134 CoverageAnalysis]: Checked inductivity of 17112 backedges. 6926 proven. 75 refuted. 0 times theorem prover too weak. 10111 trivial. 0 not checked. [2023-12-16 11:24:28,594 INFO L327 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2023-12-16 11:24:29,015 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 11:24:29,026 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 11:24:29,660 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:24:29,662 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 11:24:29,714 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-16 11:24:29,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 11:24:29,863 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 597 with TraceHistMax 93,while AutomatonFreeRefinementEngine was Timeout during proof generation before using IpTcStrategyModuleMathsat [1324716790]. [2023-12-16 11:24:29,866 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-12-16 11:24:29,868 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 11:24:29,870 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 11:24:29 BoogieIcfgContainer [2023-12-16 11:24:29,870 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 11:24:29,870 INFO L158 Benchmark]: Toolchain (without parser) took 78659.20ms. Allocated memory is still 235.9MB. Free memory was 181.3MB in the beginning and 111.9MB in the end (delta: 69.3MB). Peak memory consumption was 69.8MB. Max. memory is 8.0GB. [2023-12-16 11:24:29,870 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 157.3MB. Free memory was 107.5MB in the beginning and 107.3MB in the end (delta: 143.4kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 11:24:29,871 INFO L158 Benchmark]: CACSL2BoogieTranslator took 478.39ms. Allocated memory is still 235.9MB. Free memory was 181.3MB in the beginning and 150.3MB in the end (delta: 30.9MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. [2023-12-16 11:24:29,871 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.91ms. Allocated memory is still 235.9MB. Free memory was 150.3MB in the beginning and 144.6MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-16 11:24:29,871 INFO L158 Benchmark]: Boogie Preprocessor took 129.83ms. Allocated memory is still 235.9MB. Free memory was 144.6MB in the beginning and 135.7MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2023-12-16 11:24:29,872 INFO L158 Benchmark]: RCFGBuilder took 36148.64ms. Allocated memory is still 235.9MB. Free memory was 135.7MB in the beginning and 132.7MB in the end (delta: 2.9MB). Peak memory consumption was 12.4MB. Max. memory is 8.0GB. [2023-12-16 11:24:29,872 INFO L158 Benchmark]: TraceAbstraction took 41842.22ms. Allocated memory is still 235.9MB. Free memory was 132.2MB in the beginning and 111.9MB in the end (delta: 20.2MB). Peak memory consumption was 19.7MB. Max. memory is 8.0GB. [2023-12-16 11:24:29,873 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 157.3MB. Free memory was 107.5MB in the beginning and 107.3MB in the end (delta: 143.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 478.39ms. Allocated memory is still 235.9MB. Free memory was 181.3MB in the beginning and 150.3MB in the end (delta: 30.9MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 54.91ms. Allocated memory is still 235.9MB. Free memory was 150.3MB in the beginning and 144.6MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 129.83ms. Allocated memory is still 235.9MB. Free memory was 144.6MB in the beginning and 135.7MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * RCFGBuilder took 36148.64ms. Allocated memory is still 235.9MB. Free memory was 135.7MB in the beginning and 132.7MB in the end (delta: 2.9MB). Peak memory consumption was 12.4MB. Max. memory is 8.0GB. * TraceAbstraction took 41842.22ms. Allocated memory is still 235.9MB. Free memory was 132.2MB in the beginning and 111.9MB in the end (delta: 20.2MB). Peak memory consumption was 19.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 597 with TraceHistMax 93,while AutomatonFreeRefinementEngine was Timeout during proof generation before using IpTcStrategyModuleMathsat [1324716790]. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 274 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 41.8s, OverallIterations: 3, TraceHistogramMax: 93, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 18.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 mSolverCounterUnknown, 216 SdHoareTripleChecker+Valid, 18.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 216 mSDsluCounter, 1504 SdHoareTripleChecker+Invalid, 17.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 457 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 19 IncrementalHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 1047 mSDtfsCounter, 19 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1863 GetRequests, 1858 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=415occurred in iteration=2, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 5.8s SatisfiabilityAnalysisTime, 7.6s InterpolantComputationTime, 1788 NumberOfCodeBlocks, 1788 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 1785 ConstructedInterpolants, 0 QuantifiedInterpolants, 2173 SizeOfPredicates, 3 NumberOfNonLiveVariables, 2925 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 51261/51336 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown